CVE-2022-34771 — Tabit - arbitrary SMS send on Tabits behalf

Tabit - arbitrary SMS send on Tabits behalf. The resend OTP API of tabit allows an adversary to send messages on tabits behalf to anyone registered on the system - the API receives the parameters: phone number, and CustomMessage, We can use that API to craft malicious messages to

01What is this vulnerability?

Tabit - arbitrary SMS send on Tabits behalf. The resend OTP API of tabit allows an adversary to send messages on tabits behalf to anyone registered on the system - the API receives the parameters: phone number, and CustomMessage, We can use that API to craft malicious messages to any user of the system. In addition, the API probably has some kind of template injection potential. When entering…

02Affected products

Vendor	Product	Versions
Tabit	Tabit	3.27.0

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2022-08-22T14:40:51.365Z
• Last modified: 2024-09-16T20:48:05.000Z

09References

• www.gov.il — https://www.gov.il/en/departments/faq/cve_advisories